Created
March 25, 2015 15:37
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unicorn config
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worker_processes 2 | |
preload_app true | |
timeout 30 | |
app_name = "myapp" | |
app_dir = "/home/ozgun/#{app_name}" | |
working_directory "#{app_dir}/current" | |
listen "#{app_dir}/shared/tmp/unicorn.sock", :backlog => 64 | |
#listen "/tmp/unicorn.sock", :backlog => 64 | |
listen 3000, :tcp_nopush => true | |
pids_dir = "#{app_dir}/shared/tmp/pids" | |
pid "#{pids_dir}/unicorn.pid" | |
stderr_path "#{app_dir}/shared/log/unicorn.stderr.log" | |
stdout_path "#{app_dir}/shared/log/unicorn.stdout.log" | |
check_client_connection false | |
before_fork do |server, worker| | |
# the following is highly recomended for Rails + "preload_app true" | |
# as there's no need for the master process to hold a connection | |
defined?(ActiveRecord::Base) and | |
ActiveRecord::Base.connection.disconnect! | |
# The following is only recommended for memory/DB-constrained | |
# installations. It is not needed if your system can house | |
# twice as many worker_processes as you have configured. | |
# | |
# # This allows a new master process to incrementally | |
# # phase out the old master process with SIGTTOU to avoid a | |
# # thundering herd (especially in the "preload_app false" case) | |
# # when doing a transparent upgrade. The last worker spawned | |
# # will then kill off the old master process with a SIGQUIT. | |
# old_pid = "#{server.config[:pid]}.oldbin" | |
# if old_pid != server.pid | |
# begin | |
# sig = (worker.nr + 1) >= server.worker_processes ? :QUIT : :TTOU | |
# Process.kill(sig, File.read(old_pid).to_i) | |
# rescue Errno::ENOENT, Errno::ESRCH | |
# end | |
# end | |
# | |
# Throttle the master from forking too quickly by sleeping. Due | |
# to the implementation of standard Unix signal handlers, this | |
# helps (but does not completely) prevent identical, repeated signals | |
# from being lost when the receiving process is busy. | |
# sleep 1 | |
end | |
after_fork do |server, worker| | |
# per-process listener ports for debugging/admin/migrations | |
# addr = "127.0.0.1:#{9293 + worker.nr}" | |
# server.listen(addr, :tries => -1, :delay => 5, :tcp_nopush => true) | |
# the following is *required* for Rails + "preload_app true", | |
defined?(ActiveRecord::Base) and | |
ActiveRecord::Base.establish_connection | |
# if preload_app is true, then you may also want to check and | |
# restart any other shared sockets/descriptors such as Memcached, | |
# and Redis. TokyoCabinet file handles are safe to reuse | |
# between any number of forked children (assuming your kernel | |
# correctly implements pread()/pwrite() system calls) | |
# Kill off the new master after forking | |
old_pid = "#{pids_dir}/unicorn.pid.oldbin" | |
if File.exists?(old_pid) && server.pid != old_pid | |
begin | |
Process.kill("QUIT", File.read(old_pid).to_i) | |
rescue Errno::ENOENT, Errno::ESRCH | |
# someone else did our job for us | |
end | |
end | |
end |
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